title: Interaction in the ciliate Euplotes crassus: evidence for a preferential polypeptide transfer between cells ready to pair.
mesh_terms: D000818:Animals; D016798:Ciliophora / Q000502:physiology*; D003227:Conjugation, Genetic; D010455:Peptides / Q000378:metabolism*; D012098:Reproduction
chemical_list: D010455:Peptides